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“Fantastic,” as described by a reader, this slow cooker cauliflower soup has nearly no prep time and is naturally creamy and vegan, thanks to cauliflower and cashews! We love to top it with crispy spiced chickpeas to amp up the protein (and deliciousness).

Pairs well with Air Fryer Brussels Sprouts (with hot honey, yum!) and Sweet Potato Gnocchi.

Cauliflower soup with chickpeas in a big bowl.
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Is there anything cauliflower can’t become? This velvety smooth cauliflower soup tastes like a creamy potato soup (but with fewer carbs). Unlike in my roasted cauliflower soup where caramelized edges bring big flavor, we’re cooking this one low and slow in the slow cooker.

The long cooking time means the veggies become tender, and flavors blend perfectly, making for the most delicious (and hands-off) dinner!

Reader rating

★★★★★

“Honestly I was skeptical. I really thought as simple as this recipe was, that it would be bland. But it was delicious, I wouldn’t change anything. ” —Sara

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Cauliflower soup with chickpeas in a slow cooker.

the creamy secret

Now, you can make a pretty good cauliflower soup with cauliflower alone, but cashews make it really good. Cashews make this slow cooker cauliflower soup feel full and creamy (while keeping the recipe totally plant-based!)

Ingredients needed to make slow cooker cauliflower soup.
Cauliflower soup with chickpeas in a big bowl.

Freezer Meal Prep

This soup is amazing as a freezer meal prep dinner! Add all of the soup ingredients to a freezer-safe bag and store frozen for up to 3 months. When ready to enjoy, add it all to a slow cooker with vegetable broth and cook (starting at Step 1 of the recipe).

Slow cooker cauliflower soup in a freezer bag.

P.S. If you loved this recipe, try my Vegan Corn Chowder or Broccoli Soup With Cashews next! Or for another creamy option, try this Cauliflower Leek Soup!

Slow Cooker Vegan Cauliflower Soup (With Cashews)

4.71 from 100 ratings
Prep: 5 minutes
Cook: 3 hours
Total: 3 hours 5 minutes
Servings: 4 servings (about 2 cups each)
This slow cooker cauliflower soup is naturally creamy, vegan, and low-prep—made with cauliflower and cashews, and topped with crispy spiced chickpeas for extra protein and crunch.

Ingredients 

Cauliflower Soup

  • 1 medium head cauliflower, cut into florets
  • ½ medium yellow onion, chopped
  • 1 cup cashews, 125 g
  • 4 cups vegetable broth, 1 L
  • ½ tsp salt

Crispy Chickpeas

  • 1 15-oz can chickpeas, drained and patted dry, 425 g
  • 1 Tbsp olive oil, 15 mL
  • 1 tsp smoked paprika
  • ½ tsp cumin
  • ¼ tsp salt
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Instructions 

Cauliflower Soup

  • Cook: Roughly chop cauliflower and onion. Add to slow cooker along with cashews and broth. Submerge the cauliflower and cashews under the broth as much as possible, then cover and cook until cauliflower is tender (high for 3 to 4 hours, low for 6 to 8).
    Ingredients for cauliflower soup in a slow cooker.
  • Blend: When cauliflower is tender, puree the mixture until smooth using either a handheld immersion blender or by carefully transferring to a countertop blender.
    Blending cauliflower soup.

Chickpea Topping

  • Preheat oven to 400°F (204°C). Toss chickpeas with oil. Spread onto a baking sheet and bake for 20 minutes, or until crispy. While still hot, toss chickpeas with spices and salt. Serve warm over the soup.
    Crispy roasted chickpeas on a spatula.

Notes

Storage: Any leftover soup can be stored in the refrigerator in an airtight container for up to 5 days. You can also store it in the freezer for up to 3 months. Just let the hot soup cool completely before storing.
Stovetop: To cook this on the stove, let it simmer, covered, for 30 to 45 minutes, or until cauliflower is fork-tender.

Nutrition

Serving: 1serving | Calories: 393kcal | Carbohydrates: 38.7g | Protein: 15.1g | Fat: 21.7g | Saturated Fat: 4.1g | Cholesterol: 0mg | Sodium: 1307mg | Potassium: 761mg | Fiber: 7.5g | Sugar: 5.1g | Calcium: 60mg | Iron: 4.3mg

Nutrition information calculated by Sarah Bond, degreed nutritionist.

did you make this?Leave a comment below and tag @liveeatlearn on social media! I love seeing what you’ve made!

Soup, Salad, and sandwich!

No matter what you’re feeling, we’ve got recipe pairing options to make this cozy soup a full meal.

  • The Best Avocado Sandwich: This gem is ready in just 15 minutes, and its cool filling is a nice contrast to the warm cauliflower soup.
  • Naan Bread: With cauliflower soup being so thick, naan bread is perfect for dipping in it.
  • Vegetarian Caesar Salad: I just love a good Caesar salad and soup moment, and this one delivers!
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4.71 from 100 votes (29 ratings without comment)

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219 Comments

  1. Diane says:

    5 stars
    This soup is fantastic. The fastest, easiest recipe I’ve ever made, and it tastes like slow cooked comfort food. I’m not vegan, but made this originally for my vegan daughter and son-in-law. Now I find myself cooking it just for myself since it’s so healthy, easy and tasty!

  2. Lia says:

    Could I ask, why does it need such a long cook time? I’m going to cook it on the stove top so just wondered if I 1 hour cooking would be enough? After all cauliflower doesn’t take more than 20 minutes to soften.

    1. Sarah Bond says:

      Just because it’s a slow cooker 🙂 On the stove it’ll be about 45 to 60 minutes, or until the cauliflower is fork-tender.

    2. Marwen says:

      4 stars
      Easy and tasty!

  3. Amy Jalbert says:

    Hi, I’d love to try this but my husband can’t eat cashews. What would you add to thicken it, instead? I thought about instant potatoes or a roux. Not sure how they’d affect the taste.

    1. Sarah Bond says:

      Both of those would be tasty! 😀

    2. Carol says:

      If you want to avoid cashews, canned cannellini beans would be a great replacement. I also like to add a bit of tofu. It would also be my preference to omit the 1/4 tsp salt, & to use canned chickpeas that have no salt. There is also no-salt veg broth available for those who need to really limit sodium intake.

  4. Linda says:

    5 stars
    Thank you I finally found a soup with out heavy cream

  5. Titi says:

    Hi,
    Why do we need to cook the cauliflower 3 hours?

    1. Sarah Bond says:

      Just because it’s done in a slow cooker so it takes some time. You could make this on the stove in about 1 hour if you’d prefer 🙂

  6. Cindy Benedetti says:

    Sounds good but I wonder about the cashews. Are they raw or roasted with salt or without. I want to try this recipe.

    1. Sarah Bond says:

      You can use raw or roasted, but try to get the ones without salt (if you get salted you can just rinse them off).

  7. Katie says:

    Looks so good! Can’t wait to try! Could I use a hand mixer to blend it all up instead?

    1. Sarah Bond says:

      You’ll need a blender to really get that smooth texture (especially with the cashews!)

    2. Tracey says:

      I used a Woolworths stick blender straight into my slowcooker pot and it blended up super smooth. No problems at all.

  8. Candy Tolentino says:

    Hi! I literally JUST bought a crock pot, so i can try and make this recipe. Then I got to the bottom of it, and realized there’s a stove top option too. If the stove top takes as little as 30 mins, is there a benefit to using the crockpot slow cook method instead? (I work from home so, outside of just leaving it to cook when I’m gone!) Lemme know! Thanks and looking forward! 🙂 CT

    1. Sarah Bond says:

      It’s really whichever suits your schedule, they’re both great! 🙂

  9. Brecken Auchterlonie says:

    5 stars
    This is the recipe that made me excited about cooking again! Cannot recommend it enough. It is easy to make and tastes like it took you forever!

    1. Sarah Bond says:

      So excited to hear it! Happy eating!

  10. Alison says:

    5 stars
    Great recipe ! Will be my go to for cauliflower soup —thank you !

    1. Sarah Bond says:

      I’m so happy to hear it, Alison! Enjoy!!